net/can: llce: Add RX and TX counters to ethtool statistics

commit 97633dc877b9e3b5305cfa29970f5d20373a6791 from
https://github.com/nxp-auto-linux/linux



Expose a new set of counters received from the LLCE firmware through
ethtool interface. This set of counters comprises:
	- General RX & TX counters for an interface
	- CAN2CAN in and out counters
	- CAN2ETH & ETH2CAN frames

Issue: ALB-9835
Signed-off-by: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
Signed-off-by: Zhantao Tang <zhantao.tang@windriver.com>